Staffan Betnér

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  Staffan Betnér handle.invalid · 23h
  The female gaze?
  
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  Riccardo Fusaroli fusaroli.bsky.social · Feb 4
  as I'm revising my course materials, I keep stumbling upon cool @mc-stan.org developments. Current favorites: 1. your model has funnels and you exhausted reparametrization ideas: metric = "dense_e" makes your HMC learn about covariance btw parameters. Sloooow, but effective! 1/
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  Riccardo Fusaroli fusaroli.bsky.social · Feb 6
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  Staffan Betnér handle.invalid · Feb 6
  Replying to Riccardo Fusaroli
  Workaround: github.com/paul-buerkne...
  

  Use draws from pathfinder posterior as inits · Issue #1662 · paul-buerkner/brms

  The latest cmdstanr supports using (random draws from) a previous fit as inits. This is especially useful when using pathfinder to initialize HMC. It would be useful to have it in brms as well, eit...

  github.com
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  Staffan Betnér handle.invalid · Feb 4
  Replying to Riccardo Fusaroli
  Regarding the bonus point, it helps for models that get easily stuck around local maxima. It never hurts to use Pathfinder inits...
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  Staffan Betnér handle.invalid · Feb 5
  Beta-binomial models have a tendency to behave like this
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  Mattan S. Ben-Shachar mattansb.msbstats.info · Jan 9, 2025
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  Staffan Betnér handle.invalid · Feb 4
  
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  Isobel Hadley-Kamptz handle.invalid · Feb 3
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  Staffan Betnér handle.invalid · Feb 3
  Istället för en padda till varje unge, en reMarkable till varje unge! (Man kan bara skriva och läsa på den, inga appar whatsoever)
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